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sgminer
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Yet more FAQ about SDK 2.6 and hashrate slowdowns.

nfactor-troky
Con Kolivas 13 years ago
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@ -908,6 +908,10 @@ no longer under active development and will not be supported unless someone
steps up to help maintain it. No binary builds supporting CPU mining will be steps up to help maintain it. No binary builds supporting CPU mining will be
released but CPU mining can be built into cgminer when it is compiled. released but CPU mining can be built into cgminer when it is compiled.
Q: I upgraded cgminer version and mu hashrate suddenly dropped!
A: No, you upgraded your SDK version unwittingly between upgrades of cgminer
and that caused your hashrate to drop. See the next question.
Q: I upgraded my ATI driver/SDK/cgminer and my hashrate suddenly dropped! Q: I upgraded my ATI driver/SDK/cgminer and my hashrate suddenly dropped!
A: The hashrate performance in cgminer is tied to the version of the ATI SDK A: The hashrate performance in cgminer is tied to the version of the ATI SDK
that is installed only for the very first time cgminer is run. This generates that is installed only for the very first time cgminer is run. This generates
@ -916,11 +920,12 @@ SDK after that time will have no effect on the binaries. However, if you
install a fresh version of cgminer, and have since upgraded your SDK, new install a fresh version of cgminer, and have since upgraded your SDK, new
binaries will be built. It is known that the 2.6 ATI SDK has a huge hashrate binaries will be built. It is known that the 2.6 ATI SDK has a huge hashrate
penalty on generating new binaries. It is recommended to not use this SDK at penalty on generating new binaries. It is recommended to not use this SDK at
this time. this time unless you are using an ATI 7xxx card that needs it.
Q: Which ATI SDK is the best for cgminer? Q: Which ATI SDK is the best for cgminer?
A: At the moment, versions 2.4 and 2.5 work the best. If you are forced to use A: At the moment, versions 2.4 and 2.5 work the best. If you are forced to use
the 2.6 SDK. the 2.6 SDK, the phatk kernel will perform poorly, and the diablo and my custom
modified poclbm kernel are optimised for it.
Q: I have multiple SDKs installed, can I choose which one it uses? Q: I have multiple SDKs installed, can I choose which one it uses?
A: Run cgminer with the -n option and it will list all the platforms currently A: Run cgminer with the -n option and it will list all the platforms currently

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